Seiko Cal. 3820 - 664

Seiko 3820-664

The 3820-664 is a sought-after Solar piece from Seiko's golden era. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-866323cf7032]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
15.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
170m
Dial Color
Blue Sunburst
Jewels
35j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1975

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seikata-wm-866323cf7032